R help - Jan 2006 - Basic graphics question

I have a toy example given here:

    par(fig=c(0,1,0,0.05))
    par(mar=c(0,0,0,0))
    par(plt=c(0,1,0,1))
    par(oma=c(0,0,0,0))
    par(ann=F)
   
plot(c(0,1),c(0,1),type='n',xlab='',ylab='',main='')
    rect(0,0,1,1,col='gray75')

What parameter am I missing to make the gray rectangle use the entire figure
region?  I am trying to build a plot from pieces, but there is a little bit
of margin left by the code above that prohibits the pieces from fitting
together perfectly.

Thanks,
Sean

On Tue, 24 Jan 2006, Sean Davis wrote:
> I have a toy example given here:
>
>    par(fig=c(0,1,0,0.05))
>    par(mar=c(0,0,0,0))
>    par(plt=c(0,1,0,1))
>    par(oma=c(0,0,0,0))
>    par(ann=F)
>   
plot(c(0,1),c(0,1),type='n',xlab='',ylab='',main='')
>    rect(0,0,1,1,col='gray75')
>
> What parameter am I missing to make the gray rectangle use the entire
figure
> region?  I am trying to build a plot from pieces, but there is a little bit
> of margin left by the code above that prohibits the pieces from fitting
> together perfectly.
pars 'xaxs' and 'yaxs'.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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